ກໍາມະວິທີໃນການຊະລ້າງ ແລະ ສະກັດເອົາເນື້ອທອງແດງ
This Laos Patent “LEACHING PROCESS FOR COPPER CONCENTRATES” is a public DIP intellectual-property record, filed by THE UNIVERSITY OF BRITISH COLUMBIA on 2005-08-01; current status: Expired. Identifiers include application No. P/16; DIP id LAP16; protection kind Patent - Foreign. Key dates: publication 2018-12-31; grant 2015-04-22; expiry reference 2025-08-01. Classification: C22B 3/04. Inventor(s)/designer(s): Alain F. TSHILOMBO, David G. DIXON. Abstract hint: A method of leaching copper sulphide-containing concentrates, such as chalcopyrite, includes using pyrite as a catalyst for ferrric reducti…. Unique application identifiers, holders and classification text are surfaced here to reduce near-duplicate IP landing pages; always verify against the competent office.
P/16
Mark
Key facts
- Type
- Patent
- App. no.
P/16- Status
- Expired
- Applicant
- THE UNIVERSITY OF BRITISH COLUMBIA
- Agent
- CONCETTI- Representative Bureau in LAOS.
- Filing date
- 2005-08-01
- Publication
- 2018-12-31
- Registration / grant
- 2015-04-22
- Expiry
- 2025-08-01
- Protection kind
- Patent - Foreign
- Gazette
- 71 · 2018-12-31
- Applicant address
- THE UNIVERSITY OF BRITISH COLUMBIA · IRC Buiding, Room 331, 2194 Health Sciences Mall, Vancouver, British Columbia V6T 1Z3 · CA
- Agent address
- CONCETTI- Representative Bureau in LAOS. · Ban Sokpaluang, Muong Sisattanak, Vientiane, · LA
- Nice / IPC classes
- C22B 3/04
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination Refused / terminated
-
Substantive examination
-
Published
-
Granted
Related records
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Abstract
ວິທີການສະກັດເອົາທອງແດງຈາກເນື້ອແຮ່ທີ່ມີກໍາມະຖັນທອງແດງ, ເຊັ່ນ: Chalcopyrite, ຊຶ່ງຈະລວມທັງການນໍາໃຊ້ pyrite ເປັນສື່ກາງ ຫຼື ຕົວແປໃນການຄັດເອົາທາດເຫຼັກອອກເພື່ອຈໍາກັດການຢູ່ເສີຍຂອງຜິວໜ້າຂອງ Chalcopyrite, ກໍາມະວິທີທີ່ຖືກເຮັດອອກມາພາຍໃຕ້ສະພາບທີ່ pyrite ຈະບໍ່ຖືກປະສົມແກດອອກຊີແຊນຢ່າງຖາວອນ, ຕົວຢ່າງ ໂດຍການຮັກສາຄວາມສາມາດໃນການທໍາໜ້າທີ່ຂອງນໍ້າຢາເຄມີໃຫ້ຢູ່ໃນລະດັບທີ່ເໝາະສົມ. ການສະກັດຊະລ້າງຈຶ່ງຈະຖືກເຮັດອອກມາໃນຕົວສື່ທີ່ເປັນກໍາມະຖັນທີ່ມີກົດ (acid sulphate) ແລະ ອາດຈະມີການປະສົມກັບກາດອອກຊີແຊນ ໂດຍແກດທີ່ມີ oxygen. ຫຼັງຈາກນັ້ນທອງແດງທີ່ຖືກຊະລ້າງກໍຈະຖືກແຍກອອກມາ, ຕົວຢ່າງ ໂດຍການສະກັດດ້ວຍນໍ້າຢາເຄມີ ແລະ electrowinin (SE-EW).ຂັ້ນຕອນການສະກັດຊະກັດສາມາດທີ່ຈະໄດ້ຜົນຕອບຕາມຄວາມເປັນຈິງໃນການຄັດແຍກເອົາທອງແດງໃນຄວາມດັນຂອງບັນຍາກາດໄດ້ໃນເວລາຢ່າງນ້ອຍ 4 ຊົ່ວໂມງ.
A method of leaching copper sulphide-containing concentrates, such as chalcopyrite, includes using pyrite as a catalyst for ferrric reduction in order to eliminate passivation of the chalcopyrite surface , the process being carried out under conditions whereby the pyrite is not materially oxidized, for example by maintaining the operating solution potential at a suitable level. The leaching is carried out in an acidic sulphate medium and may include oxidation by oxygen-comtaining gas. The leached copper is then recovered, for example by solvent extraction and electrowinning. The leaching process can result in the virtually complete extraction of copper at atmospheric pressure in as little as four hours.
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